CN102042189A - Pump arrangement - Google Patents
Pump arrangement Download PDFInfo
- Publication number
- CN102042189A CN102042189A CN2010105213330A CN201010521333A CN102042189A CN 102042189 A CN102042189 A CN 102042189A CN 2010105213330 A CN2010105213330 A CN 2010105213330A CN 201010521333 A CN201010521333 A CN 201010521333A CN 102042189 A CN102042189 A CN 102042189A
- Authority
- CN
- China
- Prior art keywords
- fluid
- pump
- pressure
- level
- consumption systems
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0441—Arrangements of pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20012—Multiple controlled elements
- Y10T74/20018—Transmission control
- Y10T74/20024—Fluid actuator
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- General Details Of Gearings (AREA)
Abstract
A pump arrangement 10 for fluid in an automotive transmission system includes a first, low-pressure pump stage 11 and a second, high-pressure pump stage 12, the first pump stage 11 supplying low-pressure fluid to a lubrication/cooling system 13 and to the inlet of second pump stage 12, which supplies high pressure fluid to a hydraulic control system 14. Fluid from both systems 13 and 14 is returned via a reservoir 16 and filter 15 to the first pump stage 11.
Description
Technical field
The present invention relates to a kind of pump-unit, and particularly relate to pump-unit, be used for motor drive system, particularly have the automatic or double clutch transmissions of hydraulic actuating element with two-stage.
Background technique
Current, automatic transmission system is used the single oil pump with fixed displacement, and it is by the internal combustion engine drive of vehicle, and this fixed displacement and engine speed are proportional.The oily stream of high pressure is used for the lubricated of train of gearings and torque converter and cools off the two, and is used for actuating of various breaks, clutch and shifting element.Pump operated pattern always depends on that engine speed causes this transmission type so not efficient when actuating with loss of lubrication.For the dual clutch transmission system, the lubricated and cooling of train of gearings realizes by the splash lubrication device based on oil groove usually.For the wet-type dual-clutch transmission system, usually, actuate the loop from high pressure and obtain volume fraction (volume fraction), and be used to gear engagement part, bearing and synchronizer.The double clutch system that all hydraulic is actuated needs the oil pump or the electric driven pump of permanent operation.
Above-mentioned transmission system has splashes and churning loss, and this is because all or part of immerse of gear in the transmission lubrication fluid.Automatically based on planet wheel with the dual clutch transmission system in, pump causes oil to be revealed with the permanent operation of relative elevated pressures, this need be compensated by refilling.These losses of actuating with lubrication system are known as parasitic loss.
Summary of the invention
Method of the present invention seeks to overcome or reduce the one or more of above-mentioned shortcoming.
According to a first aspect of the invention, a kind of pump-unit is provided, comprise first pump stage and second pump stage, first pump stage is fed to first consumption systems with fluid with relatively low pressure and to the second level, the second level will be improved from the hydrodynamic pressure that the first order receives, and fluid is fed to second consumption systems with elevated pressures.
Said apparatus has the advantage that reduces so-called parasitic loss.Send operation period of system at any fluid pump, fluid is by evaporation and reveal and lose.The example of such system is, the system of those be used to circulate in motor car engine transmission oil, lubricant oil and freezing mixtures.The fluid loss rate increases with the fluid volume in the system, pressure and use duration.Correspondingly, replace to use high-pressure liquid to be used for all purposes, use low-pressure fluid according to device of the present invention, wherein, in needs, can with only produce and use suitable high pressure small volume fluid.This has also saved energy, because it has been saved and need be used for producing the required additional energy of non-significant quantity fluid with high pressure.
According to a second aspect of the invention, a kind of multistage pump device is provided, be used for fluid is fed to oil hydraulic circuit with relative elevated pressures, and comprise at least the first and second pump stages, first pump stage is set to fluid is offered the second level with relatively low pressure, the second level is set for fluid is offered oil hydraulic circuit with relative elevated pressures, and wherein, the first order also is set to fluid is offered independent loop with relatively low pressure.
According to a third aspect of the invention we, a kind of motor drive system is provided, comprise one or more geared parts and at least one the lubricated and/or coolant circuit that is used for described geared parts, one or more hydraulically operated shifting elements and at least one oil hydraulic circuit of hydraulic fluid circuit that is used for this shifting element, be used to make fluid to be fed to the first pumping level of lubricated and/or coolant circuit, receive the fluid of lower pressure and the fluid elevated pressures is supplied to the second pumping level of oil hydraulic circuit from the first pumping level with lower pressure.
According to a forth aspect of the invention, a kind of method of operating motor vehicle transmission system is provided, this system comprises at least one low-pressure fluid consumption systems and at least one high-pressure liquid consumption systems, be connected to the first pumping level of low-pressure fluid consumption systems, with the second pumping level, this second pumping level is connected to the outlet of the first pumping level via switching element, optionally to receive fluid with low pressure from it, and this second pumping level is set to fluid is supplied to the high-pressure liquid consumption systems with elevated pressures, wherein, when only the low-pressure fluid consumption systems needed fluid, switching element was actuated to close the connection between the first and second pumping levels.
Description of drawings
Embodiments of the invention only by example, with reference to the accompanying drawings in following description, wherein, accompanying drawing 1 has shown the pump-unit that is used for motor drive system.
Embodiment
Term in this manual " consumption systems " is meant a kind of system, and it uses the characteristic of fluid, and particularly oil is used for lubricating and oil hydraulic circuit of vehicle.Except the small loss of leakage or the like form, consumption systems does not use up the oil of reality itself, but usually it is returned to reservoir or groove.
Refer now to unique accompanying drawing 1, shown the schematic representation of motor drive system, it incorporates with good grounds pump-unit of the present invention 10 into.This device comprises first pump 11 and second pump 12.First pump 11 is high volume pumps, with scope for 2 to 5bar low provide oily to medium pressure, be preferably 3 to 4bar.It is by the internal combustion engine drive of vehicle.Pump 11 is fed to initiatively lubricant dispensing system 13 with oil via first egress line 21.This oil is used to lubricated transmission part, such as gear engagement part, bearing and synchronizer.After using, oiling agent advances to egress line 33, and is collected in reservoir or the groove 16, and does not increase resistance to gear-box.
Pump 11 also provides oil via independent line 22 to the inlet of second pump 12 with uniform pressure.The volume of the oil of supply is compared less with the volume of oil by first pump on online thus 22.The volume ratio scope of fluid that is supplied to line 22 and 21 is 0.05 to 0.2.
Pump 12 provides oil via line 23 to accumulator 17 with high pressure, and oil is supplied to hydraulic control system 14 via line 24 from this accumulator.High pressure preferably in 40 to 60bar scope, most preferably is roughly 50bar.System 14 can be used for actuating as required the parts of dual clutch transmission system or automatic transmission system.The fluid of discharging and any leak fluid advance to reservoir 16 with line 25 expressions from system 14.
Oil from reservoir 16 is fed to independent filter 15 via line 26, is fed to first pump 11 via line 34 therefrom.Filter 15 is used for keeping lower lubricant contamination level to increase bearing life by auxiliary.
The advantage of said apparatus is because that the parasitic loss that oiling agent towing, stirring and atmospheric pressure lost cause remains is very little, this be because the oil that the enhancing of torque transmission member lubricated only needs minimum flow and gear-box forever (quiet) contact.This is because quite a few oil only is in relatively low pressure.It allows flexible operation, can select separately because be used for the parameter of each parts of transmission.
Can make various modifications to said apparatus.First pump 11 can be alternatively by electric motor drive.The operating parameter of electric notor is not selected for the transmission peak output, but is used to provide the selectable performance of pump.What in other words, need is total efficient rather than high speed.This is again also to be known as the quick operation of subtracting of motor.
In some stages, hydraulic control system 14 does not need fluid.For this situation, can provide switch valve 32 in online 22, it is used for closed line 22 and saves energy thus.This can reduce the actuator loss by the pump operated strategy that depends on demand.
Except automatic system and hydraulically operated wet type or dry dual clutch system, pump-unit can be used for various motor drive systems.Pump-unit can be used for internal-combustion engine vehicle or hybrid propulsion vehicle.
Depend on the compatibility of used additive and basic oiling agent, the two can move motor and transmission device in low tension loop.System as the variable cam phasers unit (variable camphaser unit) that uses hydraulic actuating can use high tension loop.
Pump-unit can be used for the various fluid systems except automotive drive.Can use other fluid, for example, water or air.In some applications, desired operation high-pressure system 14 rather than low service system 13.Correspondingly, switch valve can be provided with in online 21, with closed line 21 when expecting.
One or more additional pump stages can be added to shown pump-unit, forming the pump chain, each pump all in chain all with than previous higher pressure action.
In addition, reservoir 16 can be equipped with heating equipment, such as heat reservoir or heat-exchange device, thereby realizes earlier that with keep between the operation cycle subsequently fluid warmer and/or increase heating properties at vehicle high temperature hangs down viscous oil.
Claims (15)
1. pump-unit, comprise first pump stage and second pump stage, fluid is fed to first consumption systems with relatively low pressure to first pump stage and to the second level, the second level will be improved from the hydrodynamic pressure that the first order receives and fluid is fed to second consumption systems with relative elevated pressures.
2. pump-unit as claimed in claim 1, wherein, first consumption systems is oiling agent and/or coolant distribution system.
3. pump-unit as claimed in claim 1 or 2, wherein, second consumption systems is a hydraulic control system.
4. pump-unit as claimed in claim 3, wherein, the second level is fed to accumulator with fluid with relative elevated pressures, and this accumulator supplies fluid to hydraulic control component subsequently.
5. as the described pump-unit of arbitrary aforementioned claim, also comprise reservoir, wherein, be supplied to reservoir from the fluid of first and second consumption systems, this reservoir supplies the fluid to first pump stage.
6. multistage pump device, be used for fluid is fed to oil hydraulic circuit with relative elevated pressures, this pump-unit comprises at least the first and second pump stages, first pump stage is set to fluid is offered the second level with relatively low pressure, the second level is set for fluid is offered oil hydraulic circuit with relative elevated pressures, wherein, the first order also is set to fluid is offered independent loop with relatively low pressure.
7. pump-unit as claimed in claim 6, wherein, described independent loop is oiling agent and/or coolant distribution loop.
8. as claim 6 or 7 described pump-units, wherein, be supplied to shared reservoir from the fluid in described oil hydraulic circuit and described independent loop, this reservoir supplies fluid to first pump stage.
9. as claim 5 or 8 described pump-units, wherein, reservoir comprises fluid heater.
10. motor drive system, comprise one or more geared parts and at least one the lubricated and/or coolant circuit that is used for described geared parts, one or more hydraulically operated shifting elements and at least one oil hydraulic circuit of hydraulic fluid circuit that makes this shifting element, be used to make fluid to be fed to the first pumping level of lubricated and/or coolant circuit, receive the fluid of lower pressure and fluid is supplied to the second pumping level of oil hydraulic circuit with elevated pressures from the first pumping level with lower pressure.
11. an automotive vehicle transmission system comprises system as claimed in claim 10.
12. a double clutch vehicle drive system comprises system as claimed in claim 10.
13. the method for an operating motor vehicle transmission system, this system comprises at least one low-pressure fluid consumption systems and at least one high-pressure liquid consumption systems, be connected to the first pumping level of low-pressure fluid consumption systems, with the second pumping level, this second pumping level is connected to the outlet of the first pumping level optionally to receive fluid from it with low pressure via switching element, and this second pumping level is set to fluid is supplied to the high-pressure liquid consumption systems with elevated pressures, wherein, when only the low-pressure fluid consumption systems needed fluid, this switching element was actuated to close the connection between the first and second pumping levels.
14. method as claimed in claim 13, wherein, switching element is a switch valve.
15. as claim 13 or 14 described methods, wherein, the low-pressure fluid consumption systems comprises one or more lubricated and/or cooling circuits, and the high-pressure liquid consumption systems comprises one or more hydraulic control components.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0918529.9A GB2474670B (en) | 2009-10-22 | 2009-10-22 | Pump arrangement |
| GB0918529.9 | 2009-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102042189A true CN102042189A (en) | 2011-05-04 |
Family
ID=41426542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105213330A Pending CN102042189A (en) | 2009-10-22 | 2010-10-22 | Pump arrangement |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8529402B2 (en) |
| CN (1) | CN102042189A (en) |
| GB (1) | GB2474670B (en) |
| RU (1) | RU2549579C2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322156A (en) * | 2012-03-23 | 2013-09-25 | 通用汽车环球科技运作有限责任公司 | Gear box for discharging transmission fluid |
| CN104039473A (en) * | 2012-01-05 | 2014-09-10 | 斯多里机械有限责任公司 | Low Pressure Oil Cooled Composite Ram Bushing With Secondary Cooling |
| CN104675991A (en) * | 2013-11-29 | 2015-06-03 | 天津萨克赛斯机械技术开发有限公司 | Hydraulic synchronous gear-shifting system |
| CN108138951A (en) * | 2015-09-29 | 2018-06-08 | 凯斯纽荷兰(中国)管理有限公司 | For the hydraulic circuit used on CVT vehicles |
| CN111022619A (en) * | 2018-10-10 | 2020-04-17 | 通用汽车环球科技运作有限责任公司 | Cooling and lubricating system for a motor vehicle drive unit |
| CN111188763A (en) * | 2020-03-12 | 2020-05-22 | 美国杰瑞国际有限公司 | High-low pressure lubricating system for high-power plunger pump |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012203184A1 (en) * | 2012-03-01 | 2013-09-05 | Zf Friedrichshafen Ag | Apparatus, method and computer program for operating a separating clutch |
| US9121460B2 (en) | 2012-03-23 | 2015-09-01 | GM Global Technology Operations LLC | Transmission control fluid diffuser |
| DE102012221215A1 (en) | 2012-11-20 | 2014-05-22 | Schaeffler Technologies Gmbh & Co. Kg | Drive arrangement for a pressure medium pump of a vehicle and method for operating a pressure medium pump for a vehicle |
| JP6555233B2 (en) * | 2016-11-25 | 2019-08-07 | トヨタ自動車株式会社 | Hydraulic control device for vehicle |
Family Cites Families (12)
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| NL1010144C2 (en) * | 1998-09-21 | 2000-03-22 | Doornes Transmissie Bv | Continuously variable transmission. |
| SE515747C2 (en) * | 1999-12-13 | 2001-10-01 | Volvo Lastvagnar Ab | Hydraulic control system for a vehicle transmission |
| IT1320684B1 (en) * | 2000-10-03 | 2003-12-10 | Fiat Ricerche | FLOW RATE CONTROL DEVICE OF A HIGH PRESSURE PUMP IN A COMMON COLLECTOR INJECTION SYSTEM OF A FUEL |
| DE10124108A1 (en) * | 2001-05-17 | 2002-11-28 | Bosch Gmbh Robert | Start-up system for internal combustion engine builds up pressure in pipe systems for components and has supply module with drive independent of internal combustion engine |
| US6973782B2 (en) * | 2003-12-19 | 2005-12-13 | Dana Corporation | Pressurized hydraulic fluid system with remote charge pump |
| JP2006097491A (en) * | 2004-09-28 | 2006-04-13 | Aisin Seiki Co Ltd | Oil feeding device for engine |
| DE102004058261A1 (en) * | 2004-12-03 | 2006-06-08 | Volkswagen Ag | Oil pump, has low pressure oil cycle provided with one of pump stages for cooling of motor vehicle gearbox with cooling oil, where oil from low pressure oil cycle is taken out for prefilling clutch with help of quantity switching mechanism |
| DE102005013137A1 (en) * | 2005-03-22 | 2006-09-28 | Zf Friedrichshafen Ag | Method and device for controlling an oil supply for an automatic transmission and a starting element |
| US7845162B2 (en) * | 2005-06-20 | 2010-12-07 | Cummins Filtration Ip, Inc | Apparatus, system, and method for diverting fluid |
| US8322252B2 (en) * | 2006-09-29 | 2012-12-04 | Caterpillar Inc. | Step-change transmission having charge and variable displacement pumps |
| JP5012322B2 (en) * | 2007-08-27 | 2012-08-29 | アイシン・エィ・ダブリュ株式会社 | Hydraulic oil supply device for automatic transmission |
| EP2055942B1 (en) * | 2007-11-01 | 2012-06-06 | Sauer-Danfoss ApS | Hydraulic system with supplement pump |
-
2009
- 2009-10-22 GB GB0918529.9A patent/GB2474670B/en not_active Expired - Fee Related
-
2010
- 2010-10-21 RU RU2010143267/11A patent/RU2549579C2/en not_active IP Right Cessation
- 2010-10-22 US US12/910,381 patent/US8529402B2/en not_active Expired - Fee Related
- 2010-10-22 CN CN2010105213330A patent/CN102042189A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039473A (en) * | 2012-01-05 | 2014-09-10 | 斯多里机械有限责任公司 | Low Pressure Oil Cooled Composite Ram Bushing With Secondary Cooling |
| CN104039473B (en) * | 2012-01-05 | 2016-07-20 | 斯多里机械有限责任公司 | There is the cooling combined jumper bar lining of low pressure oil of supplement heat rejecter |
| CN103322156A (en) * | 2012-03-23 | 2013-09-25 | 通用汽车环球科技运作有限责任公司 | Gear box for discharging transmission fluid |
| CN103322156B (en) * | 2012-03-23 | 2016-05-04 | 通用汽车环球科技运作有限责任公司 | transmission control fluid diffuser |
| CN104675991A (en) * | 2013-11-29 | 2015-06-03 | 天津萨克赛斯机械技术开发有限公司 | Hydraulic synchronous gear-shifting system |
| CN104675991B (en) * | 2013-11-29 | 2017-06-06 | 天津萨克赛斯机械技术开发有限公司 | A kind of hydraulic synchronization shifting system |
| CN108138951A (en) * | 2015-09-29 | 2018-06-08 | 凯斯纽荷兰(中国)管理有限公司 | For the hydraulic circuit used on CVT vehicles |
| CN108138951B (en) * | 2015-09-29 | 2019-11-12 | 凯斯纽荷兰(中国)管理有限公司 | Hydraulic circuit for being used on CVT vehicle |
| CN111022619A (en) * | 2018-10-10 | 2020-04-17 | 通用汽车环球科技运作有限责任公司 | Cooling and lubricating system for a motor vehicle drive unit |
| CN111022619B (en) * | 2018-10-10 | 2022-11-22 | 通用汽车环球科技运作有限责任公司 | Cooling and lubricating system for a motor vehicle drive unit |
| CN111188763A (en) * | 2020-03-12 | 2020-05-22 | 美国杰瑞国际有限公司 | High-low pressure lubricating system for high-power plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0918529D0 (en) | 2009-12-09 |
| GB2474670A (en) | 2011-04-27 |
| US20110120250A1 (en) | 2011-05-26 |
| RU2010143267A (en) | 2012-04-27 |
| US8529402B2 (en) | 2013-09-10 |
| GB2474670B (en) | 2017-01-04 |
| RU2549579C2 (en) | 2015-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110504 |